CBSE Class 12 Physics Boards 2021 Sample Paper Solved

Physics
Download PDF

Official CBSE Practice Papers for Class 12 Physics

Explore authentic exam practice materials through the CBSE Class 12 Physics Boards 2021 Sample Paper Solved. Tailored for Class 12 learners, utilizing these Physics sample papers ensures thorough preparation and strengthens time management skills before final CBSE evaluations.

Solved Model Papers for Physics

Access the complete sample paper PDF for Class 12 Physics below. Regular practice with these targeted mock exams builds familiarity with expected question patterns and chapter weightage to help secure higher marks.

Section – A
All questions are compulsory. In case of internal choices, attempt any one of them.
 
1 Name the physical quantity having unit J/T.
 
2 Mention one use of part of electromagnetic spectrum to which a wavelength of 21 cm (emitted by hydrogen in interstellar space) belongs.
OR
Give the ratio of velocity of the two light waves of wavelengths 4000Å and 8000Å travelling in vacuum.
 
3 An electron with charge -e and mass m travels at a speed v in a plane perpendicular to a magnetic field of magnitude B. The electron follows a circular path of radius R. In a time, t, the electron travels halfway around the circle. What is the amount of work done by the magnetic field?
4 A solenoid with N loops of wire tightly wrapped around an iron-core is carrying an electric current I. If the current through this solenoid is reduced to half, then what change would you expect in inductance L of the solenoid.
OR
An alternating current from a source is given by i=10sin314t. What is the effective value of current and frequency of source?
 
5 What is the value of angular momentum of electron in the second orbit of Bohr’s model of hydrogen atom?
 
6 In a photoelectric experiment, the potential required to stop the ejection of electrons from cathode is 4V. What is the value of maximum kinetic energy of emitted Photoelectrons?
 
7 In decay of free neutron, name the elementary particle emitted along with proton and electron in nuclear reaction.
OR
In the following nuclear reaction, Identify unknown labelled X.
 
8 How does the width of a depletion region of a pn junction vary if doping concentration is increased?
OR
In half wave rectification, what is the output frequency if input frequency is 25 Hz.
 
9 When a voltage drop across a pn junction diode is increased from 0.70 V to 0.71V, the change in the diode current is 10 mA .What is the dynamic resistance of diode?
 
10 Which specially fabricated pn junction diode is used for detecting light intensity?
 
For question numbers 11, 12, 13 and 14, two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.
 
a) Both A and R are true and R is the correct explanation of A
 
b) Both A and R are true but R is NOT the correct explanation of A
 
c) A is true but R is false
 
d) A is false and R is also false
 
11 Assertion(A) :
In a nonuniform electric field, a dipole will have translatory as well as rotatory motion.
 
Reason(R):
In a nonuniform electric field, a dipole experiences a force as well as torque.
 
12 Assertion(A):
Electric field is always normal to equipotential surfaces and along the direction of decreasing order of potential
 
Reason(R):
Negative gradient of electric potential is electric field.
 
13 Assertion (A):
A convex mirror cannot form real images.
 
Reason (R):
Convex mirror converges the parallel rays that are incident on it.
 
Please click on below link to download CBSE Class 12 Physics Boards 2021 Sample Paper Solved.

Free study material for Physics

Model Practice Papers & Solutions for Class 12 Physics

Get Started with CBSE Class 12 Physics Boards 2021 Sample Paper Solved (CBSE)

Review model practice papers for Class 12 Physics. Working through the CBSE Class 12 Physics Boards 2021 Sample Paper Solved under simulated test conditions at home ensures complete familiarity with upcoming school evaluations.

Key Advantages of Solving CBSE Class 12 Physics Boards 2021 Sample Paper Solved

  • Original Practice Material: Access unique questions for Physics designed to challenge your understanding.
  • Self-Assessment: Evaluate scores per set to pinpoint weak zones in Class 12 Physics.
  • Exam Completion Skills: Routine problem sets train you to manage test duration efficiently without stress.

Steps to Follow After Completing CBSE Class 12 Physics Boards 2021 Sample Paper Solved

  1. Self-Evaluation: Score your answers using official guidance to track your academic progress.
  2. Mistake Correction: Class 12 pupils must re-solve questions answered incorrectly to master the correct method.
  3. Continuous Practice: Take additional Physics sample modules online to maximize preparedness for CBSE evaluations.

FAQs

Where can I download the PDF for CBSE Class 12 Physics Boards 2021 Sample Paper Solved?

You can download the complete PDF for CBSE Class 12 Physics Boards 2021 Sample Paper Solved for free from StudiesToday.com. Our resources for Class 12 Physics are updated for the latest academic session and follow the official exam pattern.

Are solutions provided for CBSE Class 12 Physics Boards 2021 Sample Paper Solved?

Yes, CBSE Class 12 Physics Boards 2021 Sample Paper Solved comes with detailed, teacher-verified solutions. We have provided step-by-step answers for Physics to help students of Class 12 understand correct methodology and marking scheme.

How can practicing CBSE Class 12 Physics Boards 2021 Sample Paper Solved help in exam preparation?

Practicing this Physics paper helps in time management and identifying important topics. For Class 12, solving mock papers is the best way to gain confidence and reduce exam-day anxiety.

Is the CBSE Class 12 Physics Boards 2021 Sample Paper Solved accessible on mobile and tablets?

Yes, all our study materials for Class 12 Physics are provided in a mobile-friendly PDF format. You can easily download CBSE Class 12 Physics Boards 2021 Sample Paper Solved on your mobile device.